Dyfyniad APA

(2008). RosettaStone English: Teacher's guide (Classroom version 3). Harrisonburg, VA: Rosetta Stone.

Dyfyniad Arddull Chicago

RosettaStone English: Teacher's Guide (Classroom Version 3). Harrisonburg, VA: Rosetta Stone, 2008.

Dyfyniad MLA

RosettaStone English: Teacher's Guide (Classroom Version 3). Harrisonburg, VA: Rosetta Stone, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.